Joint migration inversion is a recently proposed technology, accommodating velocity model building and seismic migration in one integrated process. Different from the widely accepted full waveform inversion technology, it uses imaging parameters, i.e. velocities and reflectivities of the subsurface, to parameterize its solution space. The unique feature of this new technology is its explicit capability to exploit multiples in its inversion scheme, which are treated as noise by most current technologies. In this paper, we comprehensively evaluate the state-of-the-art joint migration inversion technology from various angles: we first benchmark its performance, on both velocity model building and seismic imaging, against that of the well-accepted workflow comprising full waveform inversion and reverse-time migration using a fully controlled 2D realistic synthetic dataset. Next, we demonstrate its application on a 2D field dataset. Last, we use another 2D synthetic dataset to clearly illustrate the challenges the current joint migration inversion technology is facing. With this paper, we transparently reveal the pros of cons of the current joint migration inversion, and we will also point out the imminent research directions joint migration inversion technology should focus on in the next phase for it to be more widely accepted by the geophysics community.

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联合迁移反演：特点和挑战

联合偏移反演是最近提出的一项技术，可在一个集成过程中实现速度模型构建和地震偏移。与广泛接受的全波形反演技术不同，它使用成像参数，即地下的速度和反射率，对其解空间进行参数化。这种新技术的独特之处在于它在其反演方案中明确利用倍数的能力，大多数当前技术将其视为噪声。在本文中，我们从各个角度综合评估了最先进的联合偏移反演技术：我们首先在速度模型构建和地震成像方面对其性能进行了基准测试，与使用完全受控的 2D 真实合成数据集的全波形反演和逆时偏移等广为接受的工作流程相反。接下来，我们将演示其在二维字段数据集上的应用。最后，我们使用另一个二维合成数据集来清楚地说明当前联合偏移反演技术面临的挑战。通过本文，我们透明地揭示了当前联合偏移反演的利弊，并指出了联合偏移反演技术在下一阶段应重点关注的迫在眉睫的研究方向，以使其被地球物理学界更广泛地接受. 我们使用另一个二维合成数据集来清楚地说明当前联合偏移反演技术面临的挑战。通过本文，我们透明地揭示了当前联合偏移反演的利弊，并指出了联合偏移反演技术在下一阶段应重点关注的迫在眉睫的研究方向，以使其被地球物理学界更广泛地接受. 我们使用另一个二维合成数据集来清楚地说明当前联合偏移反演技术面临的挑战。通过本文，我们透明地揭示了当前联合偏移反演的利弊，并指出了联合偏移反演技术在下一阶段应重点关注的迫在眉睫的研究方向，以使其被地球物理学界更广泛地接受.